Patents by Inventor Daniel Stahre

Daniel Stahre has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Control and protection of loudspeakers
    Patent number: 10349173
    Abstract: A nonlinear control system and a loudspeaker protection system. In particular, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream therefrom. An active loudspeaker with an integrated amplifier is disclosed. A loudspeaker protection system and a quality control system are disclosed. More particularly, a system for clamping the input to a loudspeaker dependent upon a bank of representative models is disclosed.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: July 9, 2019
    Assignee: CIRRUS LOGIC, INC.
    Inventors: Pär Gunnars Risberg, Erik Lindahl, Marcus Arvidsson, Daniel Stahre, Landy Toth
  • Control and protection of loudspeakers
    Patent number: 9900690
    Abstract: A nonlinear control system and a loudspeaker protection system. In particular, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream therefrom. An active loudspeaker with an integrated amplifier is disclosed. A loudspeaker protection system and a quality control system are disclosed. More particularly, a system for clamping the input to a loudspeaker dependent upon a bank of representative models is disclosed.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: February 20, 2018
    Assignee: CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD.
    Inventors: Pär Gunnars Risberg, Erik Lindahl, Marcus Arvidsson, Daniel Stahre, Landy Toth
  • Non-linear control of loudspeakers
    Patent number: 9516443
    Abstract: A nonlinear control system is disclosed. More particularly, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream therefrom.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: December 6, 2016
    Assignee: CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD.
    Inventors: Pär Gunnars Risberg, Marcus Arvidsson, Daniel Stahre, Landy Toth
  • NON-LINEAR CONTROL OF LOUDSPEAKERS
    Publication number: 20150201294
    Abstract: A nonlinear control system is disclosed. More particularly, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream there from.
    Type: Application
    Filed: June 7, 2013
    Publication date: July 16, 2015
    Applicant: ACTIWAVE AB
    Inventors: Pär Gunnars Risberg, Marcus Arvidsson, Daniel Stahre, Landy Toth